Exemple #1
0
static int
ospf6_decode_v3(netdissect_options *ndo,
                register const struct ospf6hdr *op,
                register const u_char *dataend)
{
	register const rtrid_t *ap;
	register const struct lsr6 *lsrp;
	register const struct lsa6_hdr *lshp;
	register const struct lsa6 *lsap;
	register int i;

	switch (op->ospf6_type) {

	case OSPF_TYPE_HELLO: {
		register const struct hello6 *hellop = (const struct hello6 *)((const uint8_t *)op + OSPF6HDR_LEN);

		ND_PRINT((ndo, "\n\tOptions [%s]",
		          bittok2str(ospf6_option_values, "none",
		          EXTRACT_32BITS(&hellop->hello_options))));

		ND_TCHECK(hellop->hello_deadint);
		ND_PRINT((ndo, "\n\t  Hello Timer %us, Dead Timer %us, Interface-ID %s, Priority %u",
		          EXTRACT_16BITS(&hellop->hello_helloint),
		          EXTRACT_16BITS(&hellop->hello_deadint),
		          ipaddr_string(ndo, &hellop->hello_ifid),
		          hellop->hello_priority));

		ND_TCHECK(hellop->hello_dr);
		if (EXTRACT_32BITS(&hellop->hello_dr) != 0)
			ND_PRINT((ndo, "\n\t  Designated Router %s",
			    ipaddr_string(ndo, &hellop->hello_dr)));
		ND_TCHECK(hellop->hello_bdr);
		if (EXTRACT_32BITS(&hellop->hello_bdr) != 0)
			ND_PRINT((ndo, ", Backup Designated Router %s",
			    ipaddr_string(ndo, &hellop->hello_bdr)));
		if (ndo->ndo_vflag > 1) {
			ND_PRINT((ndo, "\n\t  Neighbor List:"));
			ap = hellop->hello_neighbor;
			while ((const u_char *)ap < dataend) {
				ND_TCHECK(*ap);
				ND_PRINT((ndo, "\n\t    %s", ipaddr_string(ndo, ap)));
				++ap;
			}
		}
		break;	/* HELLO */
	}

	case OSPF_TYPE_DD: {
		register const struct dd6 *ddp = (const struct dd6 *)((const uint8_t *)op + OSPF6HDR_LEN);

		ND_TCHECK(ddp->db_options);
		ND_PRINT((ndo, "\n\tOptions [%s]",
		          bittok2str(ospf6_option_values, "none",
		          EXTRACT_32BITS(&ddp->db_options))));
		ND_TCHECK(ddp->db_flags);
		ND_PRINT((ndo, ", DD Flags [%s]",
		          bittok2str(ospf6_dd_flag_values,"none",ddp->db_flags)));

		ND_TCHECK(ddp->db_seq);
		ND_PRINT((ndo, ", MTU %u, DD-Sequence 0x%08x",
                       EXTRACT_16BITS(&ddp->db_mtu),
                       EXTRACT_32BITS(&ddp->db_seq)));
		if (ndo->ndo_vflag > 1) {
			/* Print all the LS adv's */
			lshp = ddp->db_lshdr;
			while ((const u_char *)lshp < dataend) {
				if (ospf6_print_lshdr(ndo, lshp++, dataend))
					goto trunc;
			}
		}
		break;
	}

	case OSPF_TYPE_LS_REQ:
		if (ndo->ndo_vflag > 1) {
			lsrp = (const struct lsr6 *)((const uint8_t *)op + OSPF6HDR_LEN);
			while ((const u_char *)lsrp < dataend) {
				ND_TCHECK(*lsrp);
				ND_PRINT((ndo, "\n\t  Advertising Router %s",
				          ipaddr_string(ndo, &lsrp->ls_router)));
				ospf6_print_ls_type(ndo, EXTRACT_16BITS(&lsrp->ls_type),
                                                    &lsrp->ls_stateid);
				++lsrp;
			}
		}
		break;

	case OSPF_TYPE_LS_UPDATE:
		if (ndo->ndo_vflag > 1) {
			register const struct lsu6 *lsup = (const struct lsu6 *)((const uint8_t *)op + OSPF6HDR_LEN);

			ND_TCHECK(lsup->lsu_count);
			i = EXTRACT_32BITS(&lsup->lsu_count);
			lsap = lsup->lsu_lsa;
			while ((const u_char *)lsap < dataend && i--) {
				if (ospf6_print_lsa(ndo, lsap, dataend))
					goto trunc;
				lsap = (const struct lsa6 *)((const u_char *)lsap +
				    EXTRACT_16BITS(&lsap->ls_hdr.ls_length));
			}
		}
		break;

	case OSPF_TYPE_LS_ACK:
		if (ndo->ndo_vflag > 1) {
			lshp = (const struct lsa6_hdr *)((const uint8_t *)op + OSPF6HDR_LEN);
			while ((const u_char *)lshp < dataend) {
				if (ospf6_print_lshdr(ndo, lshp++, dataend))
					goto trunc;
			}
		}
		break;

	default:
		break;
	}
	return (0);
trunc:
	return (1);
}
Exemple #2
0
static int
ospf6_decode_v3(register const struct ospf6hdr *op,
    register const u_char *dataend)
{
	register const rtrid_t *ap;
	register const struct lsr6 *lsrp;
	register const struct lsa6_hdr *lshp;
	register const struct lsa6 *lsap;
	register int i;

	switch (op->ospf6_type) {

	case OSPF_TYPE_HELLO:
                printf("\n\tOptions [%s]",
                       bittok2str(ospf6_option_values, "none",
                                  EXTRACT_32BITS(&op->ospf6_hello.hello_options)));

                TCHECK(op->ospf6_hello.hello_deadint);
                printf("\n\t  Hello Timer %us, Dead Timer %us, Interface-ID %s, Priority %u",
                       EXTRACT_16BITS(&op->ospf6_hello.hello_helloint),
                       EXTRACT_16BITS(&op->ospf6_hello.hello_deadint),
                       ipaddr_string(&op->ospf6_hello.hello_ifid),
                       op->ospf6_hello.hello_priority);

		TCHECK(op->ospf6_hello.hello_dr);
		if (op->ospf6_hello.hello_dr != 0)
			printf("\n\t  Designated Router %s",
			    ipaddr_string(&op->ospf6_hello.hello_dr));
		TCHECK(op->ospf6_hello.hello_bdr);
		if (op->ospf6_hello.hello_bdr != 0)
			printf(", Backup Designated Router %s",
			    ipaddr_string(&op->ospf6_hello.hello_bdr));
		if (vflag) {
			printf("\n\t  Neighbor List:");
			ap = op->ospf6_hello.hello_neighbor;
			while ((u_char *)ap < dataend) {
				TCHECK(*ap);
				printf("\n\t    %s", ipaddr_string(ap));
				++ap;
			}
		}
		break;	/* HELLO */

	case OSPF_TYPE_DD:
		TCHECK(op->ospf6_db.db_options);
                printf("\n\tOptions [%s]",
                       bittok2str(ospf6_option_values, "none",
                                  EXTRACT_32BITS(&op->ospf6_db.db_options)));
		TCHECK(op->ospf6_db.db_flags);
                printf(", DD Flags [%s]",
                       bittok2str(ospf6_dd_flag_values,"none",op->ospf6_db.db_flags));

		TCHECK(op->ospf6_db.db_seq);
		printf(", MTU %u, DD-Sequence 0x%08x",
                       EXTRACT_16BITS(&op->ospf6_db.db_mtu),
                       EXTRACT_32BITS(&op->ospf6_db.db_seq));

                /* Print all the LS adv's */
                lshp = op->ospf6_db.db_lshdr;
                while (!ospf6_print_lshdr(lshp)) {
                    ++lshp;
                }
		break;

	case OSPF_TYPE_LS_REQ:
		if (vflag) {
			lsrp = op->ospf6_lsr;
			while ((u_char *)lsrp < dataend) {
				TCHECK(*lsrp);
                                printf("\n\t  Advertising Router %s",
                                       ipaddr_string(&lsrp->ls_router));
				ospf6_print_ls_type(EXTRACT_16BITS(&lsrp->ls_type),
                                                    &lsrp->ls_stateid);
				++lsrp;
			}
		}
		break;

	case OSPF_TYPE_LS_UPDATE:
		if (vflag) {
			lsap = op->ospf6_lsu.lsu_lsa;
			TCHECK(op->ospf6_lsu.lsu_count);
			i = EXTRACT_32BITS(&op->ospf6_lsu.lsu_count);
			while (i--) {
				if (ospf6_print_lsa(lsap))
					goto trunc;
				lsap = (struct lsa6 *)((u_char *)lsap +
				    EXTRACT_16BITS(&lsap->ls_hdr.ls_length));
			}
		}
		break;


	case OSPF_TYPE_LS_ACK:
		if (vflag) {
			lshp = op->ospf6_lsa.lsa_lshdr;

			while (!ospf6_print_lshdr(lshp)) {
				++lshp;
			}
		}
		break;

	default:
		break;
	}
	return (0);
trunc:
	return (1);
}
static int
ospf6_decode_v3(register const struct ospf6hdr *op,
    register const u_char *dataend)
{
	register const rtrid_t *ap;
	register const struct lsr *lsrp;
	register const struct lsa_hdr *lshp;
	register const struct lsa *lsap;
	register char sep;
	register int i;

	switch (op->ospf6_type) {

	case OSPF_TYPE_UMD:
		/*
		 * Rob Coltun's special monitoring packets;
		 * do nothing
		 */
		break;

	case OSPF_TYPE_HELLO:
		if (vflag) {
			TCHECK(op->ospf6_hello.hello_deadint);
			ospf6_print_bits(ospf6_option_bits,
			    EXTRACT_32BITS(&op->ospf6_hello.hello_options));
			printf(" ifid %s pri %d int %d dead %u",
			    ipaddr_string(&op->ospf6_hello.hello_ifid),
			    op->ospf6_hello.hello_priority,
			    EXTRACT_16BITS(&op->ospf6_hello.hello_helloint),
			    EXTRACT_16BITS(&op->ospf6_hello.hello_deadint));
		}
		TCHECK(op->ospf6_hello.hello_dr);
		if (op->ospf6_hello.hello_dr != 0)
			printf(" dr %s",
			    ipaddr_string(&op->ospf6_hello.hello_dr));
		TCHECK(op->ospf6_hello.hello_bdr);
		if (op->ospf6_hello.hello_bdr != 0)
			printf(" bdr %s",
			    ipaddr_string(&op->ospf6_hello.hello_bdr));
		if (vflag) {
			printf(" nbrs");
			ap = op->ospf6_hello.hello_neighbor;
			while ((u_char *)ap < dataend) {
				TCHECK(*ap);
				printf(" %s", ipaddr_string(ap));
				++ap;
			}
		}
		break;	/* HELLO */

	case OSPF_TYPE_DB:
		TCHECK(op->ospf6_db.db_options);
		ospf6_print_bits(ospf6_option_bits,
			EXTRACT_32BITS(&op->ospf6_db.db_options));
		sep = ' ';
		TCHECK(op->ospf6_db.db_flags);
		if (op->ospf6_db.db_flags & OSPF6_DB_INIT) {
			printf("%cI", sep);
			sep = '/';
		}
		if (op->ospf6_db.db_flags & OSPF6_DB_MORE) {
			printf("%cM", sep);
			sep = '/';
		}
		if (op->ospf6_db.db_flags & OSPF6_DB_MASTER) {
			printf("%cMS", sep);
			sep = '/';
		}
		TCHECK(op->ospf6_db.db_seq);
		printf(" mtu %u S %X", EXTRACT_16BITS(&op->ospf6_db.db_mtu),
			EXTRACT_32BITS(&op->ospf6_db.db_seq));

		if (vflag) {
			/* Print all the LS adv's */
			lshp = op->ospf6_db.db_lshdr;

			while (!ospf6_print_lshdr(lshp)) {
							/* { (ctags) */
				printf(" }");
				++lshp;
			}
		}
		break;

	case OSPF_TYPE_LSR:
		if (vflag) {
			lsrp = op->ospf6_lsr;
			while ((u_char *)lsrp < dataend) {
				TCHECK(*lsrp);
				printf(" {");		/* } (ctags) */
				ospf6_print_ls_type(EXTRACT_16BITS(&lsrp->ls_type),
				    &lsrp->ls_stateid,
				    &lsrp->ls_router,
				    "LinkStateType %d");
							/* { (ctags) */
				printf(" }");
				++lsrp;
			}
		}
		break;

	case OSPF_TYPE_LSU:
		if (vflag) {
			lsap = op->ospf6_lsu.lsu_lsa;
			TCHECK(op->ospf6_lsu.lsu_count);
			i = EXTRACT_32BITS(&op->ospf6_lsu.lsu_count);
			while (i--) {
				if (ospf6_print_lsa(lsap))
					goto trunc;
				lsap = (struct lsa *)((u_char *)lsap +
				    EXTRACT_16BITS(&lsap->ls_hdr.ls_length));
			}
		}
		break;


	case OSPF_TYPE_LSA:
		if (vflag) {
			lshp = op->ospf6_lsa.lsa_lshdr;

			while (!ospf6_print_lshdr(lshp)) {
							/* { (ctags) */
				printf(" }");
				++lshp;
			}
		}
		break;

	default:
		printf("v3 type %d", op->ospf6_type);
		break;
	}
	return (0);
trunc:
	return (1);
}